Please review the Q&A posts and answers referenced in Q&A 1807.
Specifically, the following quotes:
... when reviewing a face, mechanism, or interaction, it is much easier to prove that "yes, this is Plowing", and much harder to prove that "no, it's not Possession".
Remember that during a Match, a Head Referee won't be asking for a stable, isolated demonstration of a snapshot moment in time, such as the linked video. They will watch a Robot driving around the field, interacting with multiple Triballs, and make a judgment whether the Robot appeared to be Possessing any of them or simply Plowing through them.